发明名称 |
Pressure Measuring Device |
摘要 |
Provided is a pressure measuring device that can stably bond a strain detection element even to a diaphragm made of metal having a large coefficient of thermal expansion. In order to achieve the above object, the pressure measuring device of the present invention includes: a metal housing including a pressure introduction unit and a diaphragm deformed by a pressure introduced via the pressure introduction unit; and a strain detection element for detecting strain generated in the diaphragm, wherein a base made of a first brittle material is provided on the metal housing, and the strain detection element is bonded to the base via a second brittle material having a melting point lower than a melting point of the base. |
申请公布号 |
US2017038269(A1) |
申请公布日期 |
2017.02.09 |
申请号 |
US201415106898 |
申请日期 |
2014.11.12 |
申请人 |
HITACHI AUTOMOTIVE SYSTEMS, LTD. |
发明人 |
HIO Masayuki;SHIBATA Mizuki |
分类号 |
G01L9/00 |
主分类号 |
G01L9/00 |
代理机构 |
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代理人 |
|
主权项 |
1. A pressure detection device, comprising:
a metal housing including a pressure introduction unit and a diaphragm deformed by a pressure introduced via the pressure introduction unit; and a strain detection element for detecting strain generated in the diaphragm, wherein a base made of a first brittle material is provided on the metal housing, and the strain detection element is bonded to the base via a second brittle material having a melting point lower than a melting point of the base. |
地址 |
Hitachinaka-shi ,Ibaraki JP |